Well.... that is up to the performer. I'm sure Al Schneider, David Williamson, Dean Dill & Armando (etc) all have different answers to that question.What entertainment value is there in making coins switch positions
Along similar lines... You might ask Lance Burton where is the entertainment value in producing cards and birds?
The Lance Burton analogy fits this comment as well (someone needs to tell Lance his FISM act has no credability!)Magic without meaning renders the effect as merely a trick, and onlookers invest no credability in it or its performer.
Note: I do believe the performance of 'real' magic is a higher art form... I also believe when it's poorly executed (as it often is) the performers credability is harmed.
IMO: There are MANY correct approaches to our craft... limiting yourself to one belief system... is just that... limiting.